Impact of sample size and regression of tissue‐specific signals on effective connectivity within the core default mode network

• Published in: Human brain mapping Vol. 44; no. 17; pp. 5858 - 5870
• Main Authors: Silchenko, Alexander N., Hoffstaedter, Felix, Eickhoff, Simon B.
• Format: Journal Article
• Language: English
• Published: San Antonio John Wiley & Sons, Inc 01.12.2023
• Subjects: Brain; Brain mapping; Cognitive ability; Datasets; Estimates; Functional magnetic resonance imaging; Magnetic resonance imaging; Mathematical models; Neural networks; Neuroimaging; Parameters; Physiology; Signal to noise ratio; Stability; Time series; Young adults

Interactions within brain networks are inherently directional, which are inaccessible to classical functional connectivity estimates from resting‐state functional magnetic resonance imaging (fMRI) but can be detected using spectral dynamic causal modeling (DCM). The sample size and unavoidable prese...